CN113081710A - Auxiliary glove for blind person - Google Patents
Auxiliary glove for blind person Download PDFInfo
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- CN113081710A CN113081710A CN202110377285.0A CN202110377285A CN113081710A CN 113081710 A CN113081710 A CN 113081710A CN 202110377285 A CN202110377285 A CN 202110377285A CN 113081710 A CN113081710 A CN 113081710A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/06—Walking aids for blind persons
- A61H3/061—Walking aids for blind persons with electronic detecting or guiding means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/22—Image preprocessing by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition
- G06V10/235—Image preprocessing by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition based on user input or interaction
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/06—Walking aids for blind persons
- A61H3/061—Walking aids for blind persons with electronic detecting or guiding means
- A61H2003/063—Walking aids for blind persons with electronic detecting or guiding means with tactile perception
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/50—Control means thereof
- A61H2201/5058—Sensors or detectors
- A61H2201/5084—Acceleration sensors
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Abstract
The invention provides an auxiliary glove for blind people, comprising: the glove fabric comprises a palm center part and a palm back part; the circuit board is embedded in the palm part of the glove fabric; the visual processing device is positioned on one side of the circuit board facing the outside of the glove fabric, and is at least used for acquiring image information of the environment and processing the acquired image information into binary image information; and the tactile perception device is positioned on one side of the circuit board facing the interior of the glove fabric, is connected with the visual processing device and is used for generating tactile information according to the binary image information. The invention can obtain a binary image from the acquired complex image information by utilizing an image processing technology and a touch perception module and convert the binary image into touch information to be transmitted to the blind, and the blind can acquire road surface and other visual information by the touch perception of the palm, can effectively assist the blind in identifying blind roads and avoiding obstacles in the walking process, can effectively assist the blind in acquiring image information and help the blind in perceiving the world.
Description
Technical Field
The invention relates to the technical field of visual impairment assistance, in particular to an auxiliary glove for blind people.
Background
Blind people have to acquire information by hearing, touch, etc. due to lack of vision. They have many obstacles in the process of walking in the day, and need to walk through a crutch or guide directions by means of a blind guiding dog, which greatly influences the quality of life of the users. Most of the existing blind person auxiliary systems provide road information for the blind persons through sound, and the road information cannot be transmitted in real time due to the fact that the information transmitted by the sound is limited and has time delay of several seconds or even tens of seconds.
Disclosure of Invention
To achieve the above and other related objects, the present invention provides a blind-person assistant glove, comprising:
the glove fabric comprises a palm center part and a palm back part;
the circuit board is embedded in the palm part of the glove fabric;
the visual processing device is positioned on one side of the circuit board facing the outside of the glove fabric, and is at least used for acquiring image information of an environment and processing the acquired image information into binary image information;
and the tactile perception device is positioned on one side of the circuit board facing the interior of the glove fabric, is connected with the visual processing device and is used for generating tactile information according to the binary image information.
Optionally, the visual processing device comprises:
the camera is used for acquiring image information of the environment;
and the processor comprises a first processor which is connected with the camera and is used for processing the acquired image information into the binary image information.
Optionally, the haptic sensing device comprises:
a tactile sensation plate;
the signal flat cable is connected with the circuit board;
and the plurality of tactile generating devices are arranged on the surface of the tactile perception plate in an array and used for generating the tactile information according to the binary image information.
Optionally, a first electromagnetic coil, a second electromagnetic coil, a third electromagnetic coil, a magnetic touch rod, a rotating shaft and a bracket are mounted inside the tactile generating device; the bracket is vertically arranged in the center of the tactile sensation generation device, and the first electromagnetic coil and the second electromagnetic coil are axially symmetrical to the bracket and are arranged on two sides of the tactile sensation generation device; the third electromagnetic coil is arranged at the bottom of the bracket; the rotating shaft penetrates through the center of the magnetic touch rod and is arranged in bearings on two sides of the bracket; the signal flat cable controls the first electromagnetic coil, the second electromagnetic coil and the third electromagnetic coil in each tactile sensation generation device through an internal circuit of the tactile sensation sensing plate.
Optionally, the blind-assisting glove further comprises: the Ethernet interface is positioned on one side of the circuit board, which extends to the outside of the glove fabric; the charging interface is connected with the vision processing device and the touch sensing device.
Optionally, the blind-person assistant glove further comprises a charging system, and the charging system is connected with the charging interface through a circuit board.
Optionally, the charging system comprises a battery box, and the battery box is located at the palm back part of the glove fabric.
Optionally, a solar cell interface is arranged at the palm back part of the glove fabric, the charging system further comprises a solar cell panel and a storage battery, the solar cell is located in the solar cell interface and connected with the storage battery through a wire, and the storage battery is connected with the charging interface through the circuit board.
Optionally, the vision processing device further includes a distance measuring sensor and an acceleration sensor, where the distance measuring sensor is used to measure distance information of an obstacle; the processor also comprises a second processor, and the second processor is used for obtaining voice broadcast information according to the binary image information, the distance information and the acceleration information; the blind auxiliary glove further comprises a cover plate and a voice broadcasting device, wherein the cover plate covers the periphery of the vision processing device, and a leading-out hole is formed in the cover plate; the voice broadcast device is located on one side, facing the outside, of the circuit board, is connected with the second processor and is used for broadcasting the voice broadcast information.
Optionally, the voice broadcasting device comprises a speaker, an earphone interface and a voice switch, and the speaker and the earphone interface are located on one side of the circuit board facing the outside of the glove fabric and connected with the second processor; the voice switch is positioned on a connecting line of the loudspeaker, the earphone interface and the second processor.
As described above, the auxiliary glove for blind persons of the present invention has the following beneficial effects:
the invention can obtain a binary image from the complex image information acquired by the camera by using an image processing technology and a touch perception module, convert the binary image into touch information and transmit the touch information to the blind, and the blind can acquire road surface and other visual information by the touch perception of the palm, thereby effectively assisting the blind in identifying blind roads and avoiding obstacles in the walking process, effectively assisting the blind in acquiring image information and helping the blind in perceiving the world. Meanwhile, the invention has the advantages of small volume, simple structure, convenient use, good effect, low cost and the like.
The direction information of avoiding the barrier is transmitted to the blind person through the voice broadcast module, and the blind person can more clearly acquire the road surface and other visual information through the voice broadcast prompt.
Drawings
Fig. 1 is a schematic structural view of a blind-person assistant glove provided in the first embodiment of the invention; wherein, the figure (a) is a structural schematic diagram of the palm side of the blind auxiliary glove, and the figure (b) is a structural schematic diagram of the palm side of the blind auxiliary glove.
Fig. 2 is a schematic structural diagram of a visual processing device and a voice broadcasting device according to a second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a haptic device provided in the third embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a tactile sensation generating device in the tactile sensation sensing device according to the third embodiment of the present invention.
Element number description:
101. the glove comprises a glove fabric, 102, a circuit board base, 103, a battery box, 104, a solar battery interface, 201, a camera, 202, a distance measuring sensor, 203, a processor, 204, a circuit board, 205, a cover plate, 206, a charging interface, 207, an Ethernet interface, 208, an acceleration sensor, 301, a first electromagnetic coil, 302, a second electromagnetic coil, 303, a third electromagnetic coil, 304, a support, 305, a rotating shaft, 306, a magnetic touch rod, 307, a touch sensing plate, 308, a touch generating device, 309, a signal flat cable, 501, a loudspeaker, 502, an earphone interface, 503 and a voice switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
Most of the existing blind person auxiliary systems provide road information for the blind persons through sound, and the road information cannot be transmitted in real time due to the fact that the information transmitted by the sound is limited and has time delay of several seconds or even tens of seconds.
Example one
Referring to fig. 1 and 2, the present invention provides a blind auxiliary glove, including: a glove fabric 101, wherein the glove fabric 101 comprises a palm part (not shown) and a palm back part (not shown); the circuit board 204 is embedded in the palm part of the glove fabric 101, specifically, the circuit board 204 is arranged on a circuit board base 102, the circuit substrate 102 is located at the palm part, and the edge of the circuit substrate 102 is sewn with the mobile phone fabric 101 and is reinforced by glue; a vision processing device (not shown) located on a side of the circuit board 204 facing the outside of the glove fabric 101, and configured to at least acquire image information of an environment and process the acquired image information into binary image information; and the tactile perception device (not shown) is positioned on one side of the circuit board 204 facing the interior of the glove fabric 101, is connected with the visual processing device, and is used for generating tactile information according to the binary image information.
The invention can obtain a binary image from the complex image information obtained by the vision processing device by utilizing an image processing technology and a touch perception module, convert the binary image into touch information and transmit the touch information to the blind, and the blind can obtain the road surface and other visual information by the touch perception of the palm, thereby effectively assisting the blind in identifying blind roads and avoiding obstacles in the walking process, effectively assisting the blind in obtaining the image information and helping the blind in perceiving the world. Meanwhile, the invention has the advantages of small volume, simple structure, convenient use, good effect, low cost and the like.
Example two
With reference to fig. 1 and continuing to refer to fig. 2, the present embodiment further provides a pair of auxiliary gloves for blind person, the specific structure of the auxiliary gloves for blind person in the present embodiment is substantially the same as that of the auxiliary gloves for blind person in the first embodiment, but the difference between the two is that the auxiliary gloves for blind person in the present embodiment further includes more other structures than the auxiliary gloves for blind person in the first embodiment.
As an example, the visual processing device comprises: the camera 201, the camera 201 is used for acquiring image information of an environment; a processor 203, wherein the processor 203 comprises a first processor (not shown) connected to the camera 201 for processing the acquired image information into the binary image information. Specifically, the first processor may process the image information into the binary image information by performing processing such as filtering, noise reduction, binarization, contour extraction, and reduction on the acquired image information.
As an example, as shown in fig. 3, the haptic sensing apparatus includes: a tactile sensation plate 307 located on one side of the circuit board 204 facing the inside of the glove fabric 101; a signal bus 309, wherein the signal bus 309 is connected with the circuit board 204; a plurality of tactile sensation generation devices 308, the tactile sensation generation devices 308 being arranged in an array on the surface of the tactile sensation plate 307 for generating the tactile information according to the binary image information.
For example, referring to fig. 4, the first electromagnetic coil 301, the second electromagnetic coil 302, the third electromagnetic coil 303, the magnetic touch bar 306, the rotating shaft 305 and the bracket 304 are installed inside the tactile sensation generating device 308; the bracket 304 is vertically installed in the center of the tactile sensation generation device 308, and the first electromagnetic coil 301 and the second electromagnetic coil 302 are axially symmetrical to the bracket 304 and installed on two sides of the tactile sensation generation device 308; the third electromagnetic coil 303 is mounted at the bottom of the bracket 304; the rotating shaft 305 penetrates through the center of the magnetic touch bar 306 and is installed in bearings at two sides of the bracket 304; the signal cable 309 controls the first electromagnetic coil 301, the second electromagnetic coil 302, and the third electromagnetic coil 303 in each tactile sensation generation device 308 through an internal circuit of the tactile sensation plate 307.
The operation principle of the tactile sensation generation device 308 is as follows: when the signal received by the tactile sensation generation device 308 is 0, the first electromagnetic coil 301 and the second electromagnetic coil 302 are electrified, the third electromagnetic coil 303 is not electrified, and the magnetic touch bar 306 is attracted by the first electromagnetic coil 301 and the second electromagnetic coil 302 and is parallel to the tactile sensation plate 307; when the signal received by the tactile sensation generating device 38 is 1, no current is applied to the first electromagnetic coil 301 and the second electromagnetic coil 302, a current is applied to the third electromagnetic coil 303, and the magnetic touch bar 306 is magnetically attracted by the third electromagnetic coil 303 and is perpendicular to the tactile sensation sensing plate 307; after the blind people wear the normally-running auxiliary glove for blind people based on the tactile sensation, the blind people can feel the magnetic tactile stick 306 perpendicular to the tactile sensation plate 307 and cannot feel the magnetic tactile stick 306 parallel to the tactile sensation plate 307, and then can feel the image information acquired by the camera 201. Specifically, the processor 203 transmits the obtained binary image to the tactile sensation plate 307 through the signal cable 309, and a plurality of tactile sensation generation devices 308 arranged in an array on the tactile sensation plate 307 can perform corresponding actions according to information of corresponding coordinates in the binary image; the tactile sensation generating devices 308 on the tactile sensation sensing plate 307 are used together to transmit binary image information to the palm of the blind through tactile sensation; the invention enables the blind to obtain the binary image information through the touch sense, helps to find blind roads and identify obstacles, and further assists the blind to walk.
By way of example, continuing with reference to fig. 2, the blind-assist glove further comprises: the glove fabric 101 comprises an Ethernet interface 207 and a charging interface 206, wherein the Ethernet interface 207 and the charging interface 206 are both positioned on one side of the circuit board 204, which exceeds the outside of the glove fabric 101; the charging interface 206 is connected to the visual processing device and the tactile sensing device. Specifically, the charging interface 206 may be a low-voltage charging interface, such as a 3V, 4V, 5V, 6V or 7V charging interface.
The blind-aid glove further comprises, as an example, a charging system (not shown) connected to the charging interface 206 via the circuit board 204.
As an example, as shown in fig. 1, the charging system includes a battery box 103, and the battery box 103 is located at a palm back portion of the glove fabric 101. The edge of the battery box 103 is sewn with the glove fabric 101 and is reinforced with glue. Micro batteries may be disposed in the battery 103 to power the entire system.
As an example, referring to fig. 1, a back-palm portion of the glove fabric 101 is provided with a solar cell interface 104, an edge of the solar cell interface 104 is sewn to the glove fabric 101 and is reinforced by glue, the charging system further includes a solar cell panel (not shown) and a storage battery (not shown), the solar cell is located in the solar cell interface 104 and is connected to the storage battery through a wire, and the storage battery is connected to the charging interface 206 through the circuit board 204. The solar cell panel supplies power to the storage battery, and the storage battery supplies power to the whole system.
As an example, please continue to refer to fig. 2, the vision processing apparatus further includes a distance measuring sensor 202 and an acceleration sensor 208, wherein the distance measuring sensor 202 is configured to measure distance information of an obstacle; the processor 203 further includes a second processor, and the second processor is configured to obtain voice broadcast information according to the binary image information, the distance information, and the acceleration information; the auxiliary glove for the blind further comprises a cover plate 205 and a voice broadcasting device, wherein the cover plate 205 covers the periphery of the visual processing device, and a leading-out hole is formed in the cover plate 205; the voice broadcast device is located on one side of the circuit board 204 facing the outside, is connected with the second processor, and is used for broadcasting the voice broadcast information. The direction information of avoiding the barrier is transmitted to the blind person through the voice broadcast module, and the blind person can more clearly acquire the road surface and other visual information through the voice broadcast prompt. Specifically, the cover plate 205 may protect the circuit board 204, the camera 201, the processor 203, the ethernet interface 207, the acceleration sensor 208, and the distance measuring sensor 202.
As an example, the camera 201, the ranging sensor 202, the acceleration sensor 208, the processor 203, and the ethernet interface 207 may be soldered to the same side of the circuit board 204.
As an example, the voice broadcasting device includes a speaker 501, an earphone interface 502 and a voice switch 503, where the speaker 501 and the earphone interface 502 are located on one side of the circuit board 204 facing the outside of the glove fabric 101 and connected to the second processor; the voice switch 503 is located on the connection between the speaker 501 and the headset interface 502 and the second processor. When the voice switch 503 is turned on, the speaker 501 may broadcast the voice broadcast information output by the second processor, and when the earphone interface 502 is connected to an earphone, the earphone broadcasts the voice broadcast information.
By way of example, the blind glove of the invention is left and right, and fig. 1 illustrates a right-hand glove only, and the left-hand glove and the right-hand glove are axisymmetric and have the same internal structure.
In summary, the invention adopts the visual-tactile conversion technology, the camera acquires image information and transmits the image information to the processor, and the processor performs filtering, noise reduction, binarization, contour extraction, reduction and other processing on the image, and converts a complex image into simple binary image information. The processor transmits the obtained binary image to the touch perception board through the flat cable, and the plurality of touch generating devices arranged in an array on the touch perception board can make corresponding actions according to the information of the corresponding coordinates in the binary image. The touch sensing plate is provided with a plurality of touch generating devices which are used for generating a plurality of touch signals, and the touch sensing plate is provided with a plurality of touch generating devices which are used for generating the touch signals. The invention enables the blind to obtain the binary image information through the touch sense, helps to find blind roads and identify obstacles, and further assists the blind to walk.
The invention also adopts a visual-sound conversion technology, the camera acquires image information and transmits the image information to the processor, and the processor can carry out processing such as filtering, noise reduction, binarization, outline extraction, reduction and the like on the image, and convert a complex image into simple binary image information. Distance sensor, acceleration sensor transmit distance and acceleration information to the treater, and the treater combines binary image, barrier distance and acceleration information, calculates the most reasonable direction of dodging the barrier, transmits direction information to the voice broadcast device, carries out voice broadcast through speaker or earphone interface.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. An auxiliary glove for blind persons, comprising:
the glove fabric comprises a palm center part and a palm back part;
the circuit board is embedded in the palm part of the glove fabric;
the visual processing device is positioned on one side of the circuit board facing the outside of the glove fabric, and is at least used for acquiring image information of an environment and processing the acquired image information into binary image information;
and the tactile perception device is positioned on one side of the circuit board facing the interior of the glove fabric, is connected with the visual processing device and is used for generating tactile information according to the binary image information.
2. The blind-assisting glove according to claim 1, characterized in that: the vision processing apparatus includes:
the camera is used for acquiring image information of the environment;
and the processor comprises a first processor which is connected with the camera and is used for processing the acquired image information into the binary image information.
3. The blind-assisting glove according to claim 1, characterized in that: the tactile sensation apparatus includes:
a tactile sensation plate;
the signal flat cable is connected with the circuit board;
and the plurality of tactile generating devices are arranged on the surface of the tactile perception plate in an array and used for generating the tactile information according to the binary image information.
4. The blind-assisting glove according to claim 3, characterized in that: the first electromagnetic coil, the second electromagnetic coil, the third electromagnetic coil, the magnetic touch rod, the rotating shaft and the bracket are arranged in the touch generating device; the bracket is vertically arranged in the center of the tactile sensation generation device, and the first electromagnetic coil and the second electromagnetic coil are axially symmetrical to the bracket and are arranged on two sides of the tactile sensation generation device; the third electromagnetic coil is arranged at the bottom of the bracket; the rotating shaft penetrates through the center of the magnetic touch rod and is arranged in bearings on two sides of the bracket; the signal flat cable controls the first electromagnetic coil, the second electromagnetic coil and the third electromagnetic coil in each tactile sensation generation device through an internal circuit of the tactile sensation sensing plate.
5. The blind-assisting glove according to claim 1, characterized in that: the blind-person assistant glove further comprises: the Ethernet interface is positioned on one side of the circuit board, which extends to the outside of the glove fabric; the charging interface is connected with the vision processing device and the touch sensing device.
6. The blind-assisting glove according to claim 5, wherein: the auxiliary glove for the blind further comprises a charging system, and the charging system is connected with the charging interface through a circuit board.
7. The blind-assisting glove according to claim 6, wherein: the charging system comprises a battery box, and the battery box is located on the palm back part of the glove fabric.
8. The blind-assisting glove according to claim 7, wherein: the back of the palm portion of the glove fabric is provided with a solar cell interface, the charging system further comprises a solar cell panel and a storage battery, the solar cell is located in the solar cell interface and connected with the storage battery through a wire, and the storage battery is connected with the charging interface through the circuit board.
9. The blind-aiding glove according to any one of claims 1 to 8, wherein: the vision processing device also comprises a distance measuring sensor and an acceleration sensor, wherein the distance measuring sensor is used for measuring distance information of an obstacle; the processor also comprises a second processor, and the second processor is used for obtaining voice broadcast information according to the binary image information, the distance information and the acceleration information; the blind auxiliary glove further comprises a cover plate and a voice broadcasting device, wherein the cover plate covers the periphery of the vision processing device, and a leading-out hole is formed in the cover plate; the voice broadcast device is located on one side, facing the outside, of the circuit board, is connected with the second processor and is used for broadcasting the voice broadcast information.
10. The blind-assisting glove according to claim 9, wherein: the voice broadcasting device comprises a loudspeaker, an earphone interface and a voice switch, wherein the loudspeaker and the earphone interface are positioned on one side of the circuit board facing the outside of the mobile phone fabric and are connected with the second processor; the voice switch is positioned on a connecting line of the loudspeaker, the earphone interface and the second processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110377285.0A CN113081710A (en) | 2021-04-08 | 2021-04-08 | Auxiliary glove for blind person |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110377285.0A CN113081710A (en) | 2021-04-08 | 2021-04-08 | Auxiliary glove for blind person |
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| CN113081710A true CN113081710A (en) | 2021-07-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114469660A (en) * | 2022-01-25 | 2022-05-13 | 池浩 | Direction guiding device, direction guiding system and direction guiding method |
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2021
- 2021-04-08 CN CN202110377285.0A patent/CN113081710A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114469660A (en) * | 2022-01-25 | 2022-05-13 | 池浩 | Direction guiding device, direction guiding system and direction guiding method |
| CN114469660B (en) * | 2022-01-25 | 2023-12-15 | 池浩 | Direction guiding device, direction guiding system and direction guiding method |
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